The carrion crow is probably the most visible of the already (mostly) highly visibly crow family, it can be found across a wide number of habitats, but it probably most easily seen in parks and towns. In my experience, the best views are actually built up areas where the birds have become accustomed to scavenging from humans, for instance, the car parks of service stations. How approachable they are varies depending on population, with crows from more urban areas seeming less flighty than their more rural counterparts. The photo here was taken in London where I was able to get to within a few feet of the bird, whereas the previous photo taken in Bewick-Upon-Tweed was from a greater distance of a more flighty set of birds. Internationally - in Austria they are at the edge of the Hooded and Carrion Crow range, so both are found, while in Japan it is less common in most places than the ubiquitous Large-billed Crow, but more common in Hokkaido.